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erma4kov [3.2K]
3 years ago
9

Multiply 25 x 47 x 3

Mathematics
1 answer:
dmitriy555 [2]3 years ago
6 0
3525 is your answer please consider brainliest<3
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Wo similar triangles are shown on the coordinate grid:
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The correct answer is option D. Dilation by a scale factor of 2 followed by reflection about the x-axis

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If JKL - PNM. then M = L and the sides NP and<br> KJ are proportional.<br> True <br> Or<br> False???
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True

Step-by-step explanation:

In similarity triangles, corresponding angles are congruent and corresponding sides are in proportion.

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An online data base charges $25 an hour during the day and $12.50 an hour at night. If a research company paid $250 for 12 hours
Firdavs [7]

Answer

Find out the  which system of equations could be used to determine the number of hours charged at the day rate (d) and at the night rate (n) .

To proof

As given in the question

Let us assume that the number of hours charged at the day rate = d

Let us assume that the number of hours charged at the night rate = n

An online data base charges $25 an hour during the day and $12.50 an hour at night. If a research company paid $250 for 12 hours of use.

Total working hour in a company including day and night be  12 hours .

than the equation become in the form

d + n = 12

also

An online data base charges $25 an hour during the day

$12.50 an hour at night.

If a research company paid $250 for 12 hours of use.

than the equation becomes

25d + 12.50n = 250

than the two equation are

d + n = 12 , 25d + 12.50n = 250

multiply first by 25 and subtracted  from 25d + 12.50n = 250

25d - 25d + 12.50n - 25n = 250 - 300

12.5 n = 50

n = \frac{50}{12.5}

n = 4hours

put this in the d + n = 12

d + 4 =12

d = 12-4

d = 8 hours

Therefore the number of hours charged at the day rate  is 8 hours  and at the night rate is  4hours .

Hence proved



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3 years ago
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−4b2+6b−9−7b2+2b+5

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Select the correct answer.<br> Which table shows a proportional relationship between x and y?
wolverine [178]

Answer: The answer would be choice C because there is a constant rate of change of 3 :)

Step-by-step explanation:

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